void bugfix(void)
{
charge (a_lot_of_money)
if (customer_says_he_does_not_want_to_pay_for_bugfix)
say(“It is not a bugfix but a new version”);
if (still_complaints)
{
ignore(customer);
register(customer, big_Bill_book);
/* We’ll get him when everyone uses Billware!!*/
}
}